I know enough to be aware that saying "Holland" instead of "The Netherlands" can insult some non-Hollanders. I've met a couple of those in my time. And, of course, my coin interest taught me a bit. I have coins from (in alphabetical order):
(The) Batavian Republic
...and, of course, The Kingdom of The Netherlands itself. Some of these are city coinage, Deventer and Zutphen were of course never provinces.
A Finland-mood sounds interesting
Never really had a country mood. But the Swiss fan part I can relate to
I've had sports favourites from many parts of the world, but I often find myself rooting for the Swiss. I remember well athletes such as Pirmin Zurbriggen and Hippolyt Kempf. And don't get me started about coins from Swiss cantons